mirror of
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827f70eb76
When an index key appeared in multiple sections (e.g. CPUAffinity= was present in both "SYSTEM MANAGER DIRECTIVES" and "UNIT DIRECTIVES"), when lxml was used, the key would be not be displayed in all but one of those sections, and only an empty <term/> element would be present. This happens because lxml allows only one parent for each node, and when the same formatted element was used in multiple places, it was actually moved between them. Fix this by making a copy of the element. The bug was present since lxml support was introduced. Also fix some indentation issues.
293 lines
9.8 KiB
Python
Executable File
293 lines
9.8 KiB
Python
Executable File
# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
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#
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# This file is part of systemd.
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#
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# Copyright 2012-2013 Zbigniew Jędrzejewski-Szmek
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# systemd is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with systemd; If not, see <http://www.gnu.org/licenses/>.
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import sys
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import collections
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import re
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from xml_helper import *
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from copy import deepcopy
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TEMPLATE = '''\
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<refentry id="systemd.directives" conditional="HAVE_PYTHON">
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<refentryinfo>
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<title>systemd.directives</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Zbigniew</firstname>
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<surname>Jędrzejewski-Szmek</surname>
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<email>zbyszek@in.waw.pl</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd.directives</refentrytitle>
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<manvolnum>7</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd.directives</refname>
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<refpurpose>Index of configuration directives</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Unit directives</title>
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<para>Directives for configuring units, used in unit
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files.</para>
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<variablelist id='unit-directives' />
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</refsect1>
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<refsect1>
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<title>Options on the kernel command line</title>
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<para>Kernel boot options for configuring the behaviour of the
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systemd process.</para>
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<variablelist id='kernel-commandline-options' />
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</refsect1>
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<refsect1>
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<title>Environment variables</title>
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<para>Environment variables understood by the systemd
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manager and other programs.</para>
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<variablelist id='environment-variables' />
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</refsect1>
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<refsect1>
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<title>UDEV directives</title>
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<para>Directives for configuring systemd units through the
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udev database.</para>
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<variablelist id='udev-directives' />
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</refsect1>
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<refsect1>
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<title>Journal fields</title>
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<para>Fields in the journal events with a well known meaning.</para>
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<variablelist id='journal-directives' />
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</refsect1>
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<refsect1>
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<title>PAM configuration directives</title>
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<para>Directives for configuring PAM behaviour.</para>
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<variablelist id='pam-directives' />
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</refsect1>
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<refsect1>
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<title>crypttab options</title>
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<para>Options which influence mounted filesystems and
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encrypted volumes.</para>
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<variablelist id='crypttab-options' />
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</refsect1>
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<refsect1>
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<title>System manager directives</title>
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<para>Directives for configuring the behaviour of the
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systemd process.</para>
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<variablelist id='systemd-directives' />
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</refsect1>
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<refsect1>
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<title>bootchart.conf directives</title>
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<para>Directives for configuring the behaviour of the
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systemd-bootchart process.</para>
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<variablelist id='bootchart-directives' />
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</refsect1>
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<refsect1>
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<title>command-line options</title>
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<para>Command-line options accepted by programs in the
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systemd suite.</para>
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<variablelist id='options' />
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</refsect1>
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<refsect1>
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<title>Miscellaneous options and directives</title>
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<para>Other configuration elements which don't fit in
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any of the above groups.</para>
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<variablelist id='miscellaneous' />
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</refsect1>
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<refsect1>
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<title>Files and directories</title>
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<para>Paths and file names referred to in the
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documentation.</para>
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<variablelist id='filenames' />
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</refsect1>
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<refsect1>
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<title>Colophon</title>
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<para id='colophon' />
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</refsect1>
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</refentry>
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'''
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COLOPHON = '''\
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This index contains {count} entries in {sections} sections,
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referring to {pages} individual manual pages.
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'''
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def _extract_directives(directive_groups, formatting, page):
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t = xml_parse(page)
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section = t.find('./refmeta/manvolnum').text
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pagename = t.find('./refmeta/refentrytitle').text
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storopt = directive_groups['options']
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for variablelist in t.iterfind('.//variablelist'):
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klass = variablelist.attrib.get('class')
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storvar = directive_groups[klass or 'miscellaneous']
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# <option>s go in OPTIONS, unless class is specified
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for xpath, stor in (('./varlistentry/term/varname', storvar),
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('./varlistentry/term/option',
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storvar if klass else storopt)):
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for name in variablelist.iterfind(xpath):
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text = re.sub(r'([= ]).*', r'\1', name.text).rstrip()
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stor[text].append((pagename, section))
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if text not in formatting:
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# use element as formatted display
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if name.text[-1] in '= ':
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name.clear()
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else:
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name.tail = ''
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name.text = text
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formatting[text] = name
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storfile = directive_groups['filenames']
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for xpath, absolute_only in (('.//refsynopsisdiv//filename', False),
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('.//refsynopsisdiv//command', False),
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('.//filename', True)):
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for name in t.iterfind(xpath):
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if absolute_only and not (name.text and name.text.startswith('/')):
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continue
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if name.attrib.get('noindex'):
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continue
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name.tail = ''
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if name.text:
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if name.text.endswith('*'):
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name.text = name.text[:-1]
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if not name.text.startswith('.'):
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text = name.text.partition(' ')[0]
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if text != name.text:
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name.clear()
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name.text = text
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if text.endswith('/'):
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text = text[:-1]
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storfile[text].append((pagename, section))
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if text not in formatting:
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# use element as formatted display
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formatting[text] = name
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else:
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text = ' '.join(name.itertext())
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storfile[text].append((pagename, section))
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formatting[text] = name
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def _make_section(template, name, directives, formatting):
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varlist = template.find(".//*[@id='{}']".format(name))
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for varname, manpages in sorted(directives.items()):
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entry = tree.SubElement(varlist, 'varlistentry')
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term = tree.SubElement(entry, 'term')
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display = deepcopy(formatting[varname])
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term.append(display)
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para = tree.SubElement(tree.SubElement(entry, 'listitem'), 'para')
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b = None
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for manpage, manvolume in sorted(set(manpages)):
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if b is not None:
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b.tail = ', '
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b = tree.SubElement(para, 'citerefentry')
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c = tree.SubElement(b, 'refentrytitle')
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c.text = manpage
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d = tree.SubElement(b, 'manvolnum')
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d.text = manvolume
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entry.tail = '\n\n'
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def _make_colophon(template, groups):
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count = 0
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pages = set()
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for group in groups:
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count += len(group)
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for pagelist in group.values():
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pages |= set(pagelist)
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para = template.find(".//para[@id='colophon']")
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para.text = COLOPHON.format(count=count,
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sections=len(groups),
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pages=len(pages))
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def _make_page(template, directive_groups, formatting):
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"""Create an XML tree from directive_groups.
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directive_groups = {
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'class': {'variable': [('manpage', 'manvolume'), ...],
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'variable2': ...},
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...
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}
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"""
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for name, directives in directive_groups.items():
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_make_section(template, name, directives, formatting)
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_make_colophon(template, directive_groups.values())
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return template
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def make_page(*xml_files):
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"Extract directives from xml_files and return XML index tree."
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template = tree.fromstring(TEMPLATE)
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names = [vl.get('id') for vl in template.iterfind('.//variablelist')]
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directive_groups = {name:collections.defaultdict(list)
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for name in names}
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formatting = {}
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for page in xml_files:
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try:
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_extract_directives(directive_groups, formatting, page)
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except Exception:
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raise ValueError("failed to process " + page)
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return _make_page(template, directive_groups, formatting)
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if __name__ == '__main__':
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with open(sys.argv[1], 'wb') as f:
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f.write(xml_print(make_page(*sys.argv[2:])))
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